/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.tool.sampler;
import org.apache.activemq.tool.ClientRunBasis;
import org.junit.Before;
import org.junit.Test;
import java.util.concurrent.CountDownLatch;
import static org.junit.Assert.*;
public class AbstractPerformanceSamplerTest {
private class EmptySampler extends AbstractPerformanceSampler {
@Override
public void sampleData() {}
}
private AbstractPerformanceSampler sampler;
private CountDownLatch samplerLatch;
@Before
public void setUpSampler() {
sampler = new EmptySampler();
samplerLatch = new CountDownLatch(1);
}
@Test(expected = IllegalArgumentException.class)
public void testSetRampUpPercent_exceeds100() {
sampler.setRampUpPercent(101);
}
@Test(expected = IllegalArgumentException.class)
public void testSetRampUpPercent_lessThan0() {
sampler.setRampUpPercent(-1);
}
@Test(expected = IllegalArgumentException.class)
public void testSetRampDownPercent_exceeds99() {
sampler.setRampDownPercent(100);
}
@Test(expected = IllegalArgumentException.class)
public void testSetRampDownPercent_lessThan0() {
sampler.setRampDownPercent(-1);
}
@Test
public void testSamplerOnCountBasis() throws InterruptedException {
final CountDownLatch latch = samplerLatch;
sampler.startSampler(latch, ClientRunBasis.count, 0);
sampler.finishSampling();
samplerLatch.await();
assertNull(sampler.getDuration());
assertEquals(0, (long) sampler.getRampUpTime());
assertEquals(0, (long) sampler.getRampDownTime());
}
@Test
public void testSamplerOnTimeBasis_matchesClientSettings() throws InterruptedException {
final CountDownLatch latch = samplerLatch;
sampler.startSampler(latch, ClientRunBasis.time, 1000);
samplerLatch.await();
assertEquals(1000, (long) sampler.getDuration());
assertEquals(0, (long) sampler.getRampUpTime());
assertEquals(0, (long) sampler.getRampDownTime());
}
@Test
public void testSamplerOnTimeBasis_percentageOverrides() throws InterruptedException {
final CountDownLatch latch = samplerLatch;
sampler.setRampUpPercent(10);
sampler.setRampDownPercent(20);
sampler.startSampler(latch, ClientRunBasis.time, 1000);
samplerLatch.await();
assertEquals(1000, (long) sampler.getDuration());
assertEquals(100, (long) sampler.getRampUpTime());
assertEquals(200, (long) sampler.getRampDownTime());
}
@Test(expected = IllegalArgumentException.class)
public void testSamplerOnTimeBasis_percentageOverridesExceedSamplerDuration() throws InterruptedException {
final CountDownLatch latch = samplerLatch;
sampler.setRampUpPercent(60);
sampler.setRampDownPercent(41);
sampler.startSampler(latch, ClientRunBasis.time, 1000);
}
@Test
public void testSamplerOnTimeBasis_timeOverrides() throws InterruptedException {
final CountDownLatch latch = samplerLatch;
sampler.setRampUpTime(10);
sampler.setRampDownTime(20);
sampler.startSampler(latch, ClientRunBasis.time, 1000);
samplerLatch.await();
assertEquals(1000, (long) sampler.getDuration());
assertEquals(10, (long) sampler.getRampUpTime());
assertEquals(20, (long) sampler.getRampDownTime());
}
}